To stay fit, one needs to exercise. It might be a 30-minute cardio workout one day, some weight training the next, or just forgetting about the car and walking. In a similar way, one needs to invest in professional health. What exercise regime do teacher-librarians need to grow their skills and be able to lead? Just like at any upscale health club, there are an increasing number of attractive options to choose from. Before Web 2.0 came along, continuing education usually meant reading professional journals, attending conferences, and taking classes--and these are all still important. Today, however they are not sufficient to keep current with the latest developments in librarianship and information technology. Fortunately, over the past few years, wired media specialists have assembled personal learning networks. As a result, teacher-librarians can now connect to learning opportunities on a daily basis, whenever (and wherever) it is convenient. Keeping professionally fit is not important just for teacher-librarians' own well-being; it is important to those they work with, including classroom teachers, principals, guidance counselors, and students.